Identifies XML Document Object Model (DOM) nodes (within the context of the expression context XML DOM node) on which the error should be displayed when the form is filled out.
The showErrorOn attribute is an optional attribute of the errorCondition element.
Contains (relative to expression context XML DOM node) an XPath expression. Default is "." This is the same as the expression context.
The following is an example of the showErrorOn attribute as it is used in the errorCondition element: